ADC0809CCN/NOPB Equivalent & Substitute Parts

Part Overview

The ADC0809CCN/NOPB is an 8-bit Analog to Digital Converter manufactured by Texas Instruments, designed for data acquisition applications requiring 8 single-ended inputs with a SAR (Successive Approximation Register) architecture. The device operates with external voltage references and supports parallel data interface output. This part is classified as obsolete, making identification of active equivalent components essential for new designs and ongoing system support.

Substiute Parts

ADC0809CCN/NOPB

Texas InstrumentsIn Stock: 4812ADC0809CCN/NOPB Datasheet

Current PartRFQ

ADC088S022CIMT/NOPB

Texas InstrumentsIn Stock: 1584ADC088S022CIMT/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADC0809CCN/NOPB is determined by the following core electrical and mechanical parameters:

Critical Matching Parameters:

• Resolution: 8-bit ADC capability
• Input Configuration: 8 single-ended inputs
• Architecture: SAR-based conversion
• Supply Voltage Compatibility: Operating range must accommodate system voltage rails
• Temperature Range: Operating temperature must meet application requirements
• Data Interface: Output protocol compatibility with system controller

Acceptable Variation Parameters:

• Sampling Rate: Higher sampling rates are acceptable for legacy applications
• Reference Type: Internal supply references are acceptable where external references are not required
• Package Type: Surface mount packages are acceptable substitutes for through-hole packages in new designs
• Product Status: Active parts are preferred over obsolete parts for long-term availability

The ADC088S022CIMT/NOPB qualifies as a functional substitute based on matching 8-bit resolution, 8 single-ended inputs, SAR architecture, and compatible supply voltage ranges, despite differences in sampling rate, reference implementation, and package form factor.

Parameter Comparison

Engineering Selection Recommendations

The ADC0809CCN/NOPB is obsolete, requiring substitution for new designs and long-term system support. The ADC088S022CIMT/NOPB is the manufacturer-recommended equivalent, offering active product status and continued availability.

Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The substitute part operates across a wider supply voltage range (2.7V ~ 5.25V versus 4.5V ~ 6.5V), providing greater design flexibility for low-power applications. The extended operating temperature range (-40°C ~ 105°C) of the substitute accommodates more demanding thermal environments.

The primary design consideration is the transition from parallel data interface (ADC0809CCN/NOPB) to SPI/DSP interface (ADC088S022CIMT/NOPB), requiring firmware or controller logic modification. The package change from 28-DIP through-hole to 16-TSSOP surface mount necessitates PCB redesign for new implementations.

Frequently Asked Questions (FAQ)

Q: Can the ADC088S022CIMT/NOPB directly replace the ADC0809CCN/NOPB without design changes?

A: No. While both devices provide 8-bit resolution with 8 single-ended inputs, the data interface differs fundamentally. The ADC0809CCN/NOPB uses parallel output, while the ADC088S022CIMT/NOPB uses SPI/DSP serial interface. Controller firmware must be modified to accommodate the different communication protocol. Additionally, the package form factor differs (28-DIP through-hole versus 16-TSSOP surface mount), requiring PCB redesign.

Q: What are the key electrical compatibility considerations?

A: The ADC088S022CIMT/NOPB operates across a narrower supply voltage range (2.7V ~ 5.25V) compared to the original part (4.5V ~ 6.5V). Systems operating at 4.5V or higher are compatible. The substitute part features an internal supply reference, eliminating the need for external reference circuitry required by the ADC0809CCN/NOPB. The higher sampling rate (200k versus 10k) does not create compatibility issues for legacy applications.

Q: Is the ADC088S022CIMT/NOPB suitable for applications requiring the original 10k sampling rate?

A: Yes. The substitute part's 200k sampling rate exceeds the original specification, making it suitable for applications designed around the 10k sampling rate. The higher performance does not create backward compatibility issues.

Q: What packaging considerations apply to substitution?

A: The ADC0809CCN/NOPB uses 28-DIP through-hole packaging for breadboard and legacy PCB compatibility. The ADC088S022CIMT/NOPB uses 16-TSSOP surface mount packaging, requiring SMT assembly processes and PCB redesign. New designs should adopt the surface mount package for manufacturing efficiency and reduced board space.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the ADC0809CCN/NOPB and ADC088S022CIMT/NOPB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for component procurement and deployment.